A winding mechanism suitable for winding the tail wire inside the coil

Abstract

A winding mechanism suitable for a starting and tailing wire located inside a coil, comprising a lower die mechanism, an upper die mechanism, and a wire-blocking mechanism. The upper die mechanism comprises an upper jig seat and an upper panel. The wire-blocking mechanism comprises a pressure rod, a mounting frame, a rotating member, a push rod, a fixing member, a first spring, a wire-blocking rod, and a second spring. The middle position of the rotating member is rotatably arranged on the mounting frame, one end of the rotating member is located inside the upper panel and fits with the pressure rod, and the other end of the rotating member is movably inserted on the push rod. The rotating member can drive the push rod to move away from the wire-blocking rod so that the push rod no longer gets stuck in the wire-blocking rod. The wire-blocking rod extends out under the action of the second spring and abuts against the end face of the lower jig seat. As the wire rotates, it will wind around the outside of the wire-blocking rod and pass between the upper clamping block and the lower clamping block. At this time, the starting wire and the tail wire are located inside the coil and are parallel to each other.

Description

Technical Field

[0001] The present invention relates to the technical field of winding mechanisms, and in particular to a winding mechanism suitable for a starting and tailing wire located inside a coil. Background Art

[0002] A coil typically refers to a ring-shaped winding of wire. The most common coils include motors, inductors, transformers, and loop antennas. Wireless charging coils transmit energy through intermittent energy coupling. The receiving coil receives the current emitted by the wireless charging transmitting coil. When the transmitting coil emits current, the receiving coil receives the emitted current and stores it in the current storage terminal.

[0003] In the prior art, the starting and tail wires of wireless charging coils are mostly led outward and fit closely to the coil. For example, patent number CN201710149373.9 discloses a coil for a low-power wireless charging system. The coil for the low-power wireless charging system is wound with a flat wire and has a coil body, whose inner lead wires are led outward and fit closely to the coil. However, for some special devices, the starting and tail wires of the coil need to be located inside the coil. Therefore, a winding mechanism is needed that can wind the starting and tail wires inside the coil. Summary of the Invention

[0004] In view of this, the present invention provides a winding mechanism suitable for having the tail wire located inside the coil to solve the above technical problems.

[0005] A winding mechanism suitable for use with a tail wire located inside a coil. The winding mechanism suitable for use with a tail wire located inside a coil comprises a lower mold mechanism, an upper mold mechanism disposed opposite the lower mold mechanism, and a wire retaining mechanism disposed on the upper mold mechanism. The upper mold mechanism comprises an upper jig seat and an upper panel disposed on the upper jig seat. The upper jig seat is provided with a second accommodating hole and a third accommodating hole. The second accommodating hole and the third accommodating hole are perpendicular to and connected to each other. The wire retaining mechanism comprises a pressure rod disposed on the upper panel, a mounting bracket disposed on the upper jig seat, a rotating member rotatably disposed on the mounting bracket, a push rod disposed on the upper jig seat, a fixed member disposed on the push rod, a first spring disposed on the push rod, a wire retaining rod disposed on the upper jig seat, and a second spring disposed between the wire retaining rod and the upper panel. The mounting bracket is disposed on the outer side wall of the upper panel, and the middle position of the rotating member is rotatably disposed on the mounting bracket. One end of the rotating member is located in the upper panel and fits with the pressure rod, and the other end of the rotating member is movably inserted on the push rod. The push rod includes a first push rod and a second push rod provided at one end of the first push rod, and one end of the first push rod is located in the second accommodating hole. The other end of the first push rod is connected to the second push rod, and one end of the second push rod is connected to the first push rod, and the other end passes through the rotating member and is provided with the fixing member. The first spring is sleeved on the second push rod, and one end of the first spring abuts against the first push rod, and the other end abuts against the rotating member. The wire blocking rod is located in the third accommodating hole, and one end of the second spring abuts against the wire blocking rod, and the other end of the second spring abuts against the upper panel.

[0006] Furthermore, the lower mold mechanism includes a lower fixture seat, a lower mold drive shaft movably inserted in the center of the lower fixture seat, an axial column arranged on the lower mold drive shaft, a wire groove arranged on the axial column, and a lower clamping block arranged on the fixture seat, and a mounting groove for setting the lower clamping block is provided on the end face of the axial column facing the upper mold mechanism.

[0007] Furthermore, one end of the lower die driving shaft is movably inserted in the lower fixture seat and is provided with the axis column, and the lower die driving shaft and the axis column rotate together with the lower fixture seat.

[0008] Furthermore, one end of the wire groove is connected to the mounting groove, and the other end is connected to the side wall of the axis column. The starting wire of the coil extends into the lower clamping block through the wire groove, so that it will be clamped after the mold is closed, thereby fixing the starting wire. The wire groove is located between the mounting groove and the side wall of the axis column.

[0009] Furthermore, the upper die mechanism also includes an upper die driving shaft movably inserted on the upper fixture seat, an upper clamping block arranged on the upper die driving shaft, and a blade arranged on the upper clamping block.

[0010] Furthermore, one end of the upper die driving shaft is movably inserted in the upper fixture seat and the upper panel and is provided with the upper clamping block, and the blade is provided on the side wall of the upper clamping block and moves with the upper clamping block.

[0011] Furthermore, the upper fixture seat is further provided with a first accommodating hole, which is located at the center of the upper fixture seat and is used to set the upper mold driving shaft.

[0012] Furthermore, a stopper is provided on the outer side wall of the wire blocking rod, and a chamfer is provided on one end of the stopper facing the push rod.

[0013] Compared with the prior art, the winding mechanism provided by the present invention is suitable for the starting and tail wires being located inside the coil, and the wire blocking mechanism enables the wire blocking rod to automatically extend when the tail wire is wound. The middle position of the rotating member is rotatably arranged on the mounting frame, one end of the rotating member is located inside the upper panel and fits with the pressure rod, and the other end of the rotating member is in a U-shaped structure and is movably inserted on the push rod. One end of the rotating member in the U-shaped structure is inserted into the end of the second push rod close to the fixed member. The rotating member can drive the push rod to move in the direction away from the wire blocking rod. At this time, the push rod no longer clamps the wire blocking rod. The wire blocking rod will move in the direction of the lower mold mechanism under the action of the second spring to press against the end surface of the lower fixture seat. As the lower mold mechanism and the upper mold mechanism continue to rotate, the wire will be wound around the outside of the wire blocking rod and pass between the upper clamping block and the lower clamping block. At this time, the starting wire and the tail wire are located inside the coil and are parallel to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a winding mechanism provided by the present invention, suitable for a winding mechanism in which the starting and tail wires are located inside the coil.

[0015] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the winding mechanism suitable for having the tail wire located inside the coil.

[0016] Figure 3 for Figure 1 A structural diagram of the lower mold mechanism of the winding mechanism suitable for having the tail wire located inside the coil.

[0017] Figure 4 for Figure 1A structural diagram of the upper mold mechanism of the winding mechanism suitable for having the tail wire located inside the coil.

[0018] Figure 5 for Figure 1 A cross-sectional view of an upper fixture seat of a winding mechanism suitable for having a tail wire located inside a coil.

[0019] Figure 6 for Figure 1 A schematic diagram of the exploded structure of the wire blocking mechanism of the winding mechanism suitable for having the starting and tail wires located inside the coil.

[0020] Figure 7 for Figure 1 The winding mechanism suitable for having the tail wire located inside the coil has a top view of the lower mold mechanism when winding the tail wire.

[0021] Figure 8 for Figure 1 The winding mechanism suitable for having the tail wire located inside the coil has a top view of the lower mold mechanism when winding the tail wire. DETAILED DESCRIPTION

[0022] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0023] like Figures 1 to 8 As shown, it is a schematic structural diagram of a winding mechanism for a coil with the tail wire located inside the coil provided by the present invention. The winding mechanism for a coil with the tail wire located inside the coil comprises a lower mold mechanism 10, an upper mold mechanism 20 disposed opposite to the lower mold mechanism 10, and a wire retaining mechanism 30 disposed on the upper mold mechanism 20. It is conceivable that the winding mechanism for a coil with the tail wire located inside the coil also includes other functional modules, such as connection components, sensors, and mounting components, etc., which are well known to those skilled in the art and will not be described in detail here.

[0024] The lower mold mechanism 10 includes a lower fixture base 11, a lower mold drive shaft 12 movably inserted in the center of the lower fixture base 11, a shaft column 13 arranged on the lower mold drive shaft 12, a wire groove 14 arranged on the shaft column 13, and a lower clamping block 15 arranged on the lower fixture base 11.

[0025] The lower fixture seat 11 is connected to an external rotation driving device and can drive the lower mold mechanism 10 to rotate under the drive of the external rotation driving device.

[0026] One end of the lower die drive shaft 12 is movably inserted into the lower fixture base 11 and is provided with the shaft column 13. The other end is connected to an external vertical movement device. The external vertical movement device controls the axial movement of the lower die drive shaft 12, thereby controlling the shaft column 13 to extend out of the end surface of the lower fixture base 11. The lower die drive shaft 12 and the shaft column 13 rotate together with the lower fixture base 11.

[0027] The core column 13 serves as the axis for winding. Before winding, the core column 13 is flush with the lower fixture base 11 to prevent interference with the wire entering the wire groove 14. During winding, the core column 13 is extended by the lower mold drive shaft 12 to serve as the winding axis, allowing the wire to be wound around the side wall of the core column 13 to form a coil. The end surface of the core column 13 facing the upper mold mechanism 20 is provided with a mounting groove 16 for mounting the lower clamping block 15.

[0028] One end of the wire trough 14 is connected to the mounting slot 16, and the other end is connected to the side wall of the core column 13. The starting wire of the coil extends through the wire trough 14 and into the lower clamping block 15, where it is clamped after the mold is closed, thus securing the starting wire. Because the wire trough 14 is located between the mounting slot 16 and the side wall of the core column 13, and the wire is wound around the side wall of the core column 13, the starting wire is directly located inside the coil.

[0029] The end surface of the lower clamping block 15 facing the upper mold mechanism 20 is provided with a serration structure, thereby improving the clamping effect.

[0030] The upper mold mechanism 20 includes an upper fixture base 21, an upper panel 22 arranged on the upper fixture base 21, an upper mold driving shaft 23 movably inserted on the upper fixture base 21, an upper clamping block 24 arranged on the upper mold driving shaft 23, and a blade 25 arranged on the upper clamping block 24.

[0031] The upper jig seat 21 is provided with a first accommodating hole 211, a second accommodating hole 212, and a third accommodating hole 213. The first accommodating hole 211 is located at the center of the upper jig seat 21 and is used to set the upper mold drive shaft 23. The central axis of the third accommodating hole 213 is parallel to the central axis of the upper jig seat 21, and the second accommodating hole 212 and the third accommodating hole 213 are perpendicular to each other and connected. The second accommodating hole 212 and the third accommodating hole 213 are used to set the wire blocking mechanism 30. The upper jig seat 21 is connected to an external rotation drive device and can drive the upper mold mechanism 20 and the wire blocking mechanism 30 to rotate under its drive.

[0032] The upper panel 22 is arranged on the end surface of the upper fixture seat 21 away from the lower mold mechanism 10. The upper panel 22 is used to cooperate with the spring of the wire blocking mechanism 30 to push the wire blocking mechanism 30 out of the upper fixture seat 21. The specific description will be explained below in conjunction with the wire blocking mechanism 30.

[0033] One end of the upper mold drive shaft 23 is movably inserted between the upper fixture seat 21 and the upper panel 22 and is provided with the upper clamping block 24, and the other end is connected to an external vertical moving device. The axial movement of the upper mold drive shaft 23 is controlled by the external vertical moving device, thereby controlling the upper clamping block 24 to extend out of the end surface of the upper fixture seat 21.

[0034] The position of the upper clamping block 24 corresponds to the position of the lower clamping block 15. A serrated structure is provided on the end surface of the upper clamping block 24 facing the lower mold mechanism 10, so that the upper clamping block 24 and the lower clamping block 15 can clamp the wire under the control of the upper mold drive shaft 23.

[0035] The blade 25 is arranged on the side wall of the upper clamping block 24 and moves with the upper clamping block 24. When the upper clamping block 24 and the lower clamping block 15 clamp the wire, the blade 25 can cut off the excess wire. The specific description will be explained below in conjunction with the winding process.

[0036] The wire blocking mechanism 30 includes a pressure rod 31 arranged on the upper panel 22, a mounting bracket 32 ​​arranged on the upper fixture seat 21, a rotating member 33 rotatably arranged on the mounting bracket 32, a push rod 34 arranged on the upper fixture seat 21, a fixing member 35 arranged on the push rod 34, a first spring 36 arranged on the push rod 34, a wire blocking rod 37 arranged on the upper fixture seat 21, and a second spring 38 arranged between the wire blocking rod 37 and the upper panel 22.

[0037] The pressure rod 31 is movably inserted on the upper panel 22. One end of the pressure rod 31 abuts against one end of the rotating member 33, and the other end of the pressure rod 31 is connected to an external vertical movement device, which controls the pressure rod 31 to press down or move away from the rotating member 33.

[0038] The mounting bracket 32 ​​is disposed on the outer side wall of the upper panel 22 . The mounting bracket 32 ​​is used to rotatably mount the rotating member 33 and movably insert the push rod 34 .

[0039] The rotating member 33 has an L-shaped structure, and the middle position of the rotating member 33 is rotatably set on the mounting frame 32. One end of the rotating member 33 is located in the upper panel 22 and is in contact with the pressure rod 31. The other end of the rotating member 33 has a U-shaped structure and is movably inserted into the push rod 34.

[0040] The push rod 34 includes a first push rod 341 and a second push rod 342 disposed at one end of the first push rod 341 .

[0041] The first push rod 341 is movably disposed within the upper fixture seat 21. One end of the first push rod 341 is located within the second accommodating hole 212 and is used to block the wire blocking rod 37. The other end of the first push rod 341 is connected to the second push rod 342. One end of the second push rod 342 is connected to the first push rod 341, and the other end passes through the rotating member 33 and is provided with a fixing member 35. One end of the rotating member 33, which has a U-shaped structure, is inserted into the end of the second push rod 342 near the fixing member 35. The first spring 36 is mounted on the second push rod 342. One end of the first spring 36 abuts against the first push rod 341, and the other end abuts against the rotating member 33. The elastic force of the first spring 36 pushes the push rod 34 toward the wire blocking rod 37, causing the push rod 34 to engage the wire blocking rod 37, thereby preventing the wire blocking rod 37 from extending out of the upper fixture seat 21. When the wire blocking rod 37 needs to be extended to block the wire, the pressure rod 31 presses down one end of the rotating part 33, so that the end of the rotating part 33 with a U-shaped structure moves and pushes the fixing part 35, thereby driving the push rod 34 to move away from the wire blocking rod 37. At this time, the push rod 34 no longer clamps the wire blocking rod 37, and the wire blocking rod 37 will move toward the lower mold mechanism 10 under the action of the second spring 38.

[0042] The wire blocking rod 37 is located in the third accommodating hole 213, and the central axis of the wire blocking rod 37 is parallel to the central axis of the upper mold drive shaft 23, so that the wire blocking rod 37 can move freely in the third accommodating hole 213. One end of the second spring 38 is pressed against the wire blocking rod 37, and the other end of the second spring 38 is pressed against the upper panel 22. The second spring 38 is coaxially arranged with the wire blocking rod 37, and the elastic force of the second spring 38 itself pushes the wire blocking rod 37 to move toward the direction of the lower mold mechanism 10, so that the wire blocking rod 37 is extended to block the wire. A stop block 371 is provided on the outer side wall of the wire blocking rod 37. When the wire blocking rod 37 moves out of the third accommodating hole 213, the stop block 371 will be stuck in the orifice of the third accommodating hole 213, so that the wire blocking rod 37 stops moving, thereby achieving the effect of limiting the moving distance of the wire blocking rod 37. In the initial state, the stopper 371 is engaged with the push rod 34, and the wire retaining rod 37 does not extend from the upper fixture seat 21. In order to facilitate the engagement of the stopper 371 with the push rod 34, a chamfer is provided at one end of the stopper 371 facing the push rod 34.

[0043] When winding, the axis column 13 is extended as the axis of winding under the drive of the lower die drive shaft 12. Then the wire passes through the wire groove 14 and enters the lower clamping block 15. Figure 7 As shown, the lower mold mechanism 10 and the upper mold mechanism 20 are then closed and rotated to wind the wire, so that the shaft column 13 fits the upper fixture seat 21, and the upper clamping block 24 and the lower clamping block 15 clamp the starting wire, and the wire is wound on the side wall of the shaft column 13 to form a coil. When a certain width of winding is completed and the tail wire needs to be bent, the lower mold mechanism 10 and the upper mold mechanism 20 are separated first, and then the pressure rod 31 presses down one end of the rotating part 33, so that the end of the rotating part 33 with a U-shaped structure moves and pushes the fixed part 35, thereby driving the push rod 34 to move away from the wire blocking rod 37. At this time, the push rod 34 no longer clamps the wire blocking rod 37, and the wire blocking rod 37 will move toward the direction of the lower mold mechanism 10 under the action of the second spring 38 and press against the end face of the lower fixture seat 11. As the lower mold mechanism 10 and the upper mold mechanism 20 continue to rotate, the wire will be wound around the outside of the wire blocking rod 37 and pass between the upper clamping block 24 and the lower clamping block 15. At this time, the starting wire and the tail wire are parallel to each other. Figure 8 The upper clamping block 24 and the lower clamping block 15 clamp the starting wire and the tail wire again, and the shaft column 13 and the lower clamping block 15 descend simultaneously, thereby realizing the demoulding of the coil and cutting off the excess tail wire by the blade 25.

[0044] Compared with the prior art, the winding mechanism provided by the present invention is suitable for the starting and ending wires located inside the coil, and the wire blocking rod 37 is automatically extended when the tail wire is wound, through the wire blocking mechanism 30. The middle position of the rotating member 33 is rotatably set on the mounting frame 32, one end of the rotating member 33 is located in the upper panel 22 and fits with the pressure rod 31, and the other end of the rotating member 33 is U-shaped and movably inserted on the push rod 34. One end of the rotating member 33 with a U-shaped structure is inserted into the end of the second push rod 342 close to the fixed member 35. The rotating member 33 can drive the push rod 34 to move in the direction away from the wire blocking rod 37. At this time, the push rod 34 no longer clamps the wire blocking rod 37. The wire blocking rod 37 will move toward the direction of the lower mold mechanism 10 under the action of the second spring 38 to press against the end face of the lower fixture seat 11. As the lower mold mechanism 10 and the upper mold mechanism 20 continue to rotate, the wire will wrap around the outside of the wire blocking rod 37 and pass between the upper clamping block 24 and the lower clamping block 15. At this time, the starting wire and the tail wire are located inside the coil and are parallel to each other.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A winding mechanism suitable for a winding with the tail wire located inside the coil, characterized in that: The winding mechanism suitable for the tail wire located on the inner side of the coil includes a lower mold mechanism, an upper mold mechanism arranged opposite to the lower mold mechanism, and a wire blocking mechanism arranged on the upper mold mechanism, the upper mold mechanism includes an upper jig seat, an upper panel arranged on the upper jig seat, the upper jig seat is provided with a second accommodating hole, and a third accommodating hole, the second accommodating hole and the third accommodating hole are perpendicular to each other and connected, the wire blocking mechanism includes a pressure rod arranged on the upper panel, a mounting frame arranged on the upper jig seat, a rotating part rotatably arranged on the mounting frame, a push rod arranged on the upper jig seat, a fixing part arranged on the push rod, a first spring arranged on the push rod, a wire blocking rod arranged on the upper jig seat, and a second spring arranged between the wire blocking rod and the upper panel, the mounting frame The mounting frame is arranged on the outer wall of the upper panel, and the middle position of the rotating member is rotatably arranged on the mounting frame, and one end of the rotating member is located in the upper panel and fits the pressure rod, and the other end of the rotating member is movably inserted into the push rod, and the push rod includes a first push rod and a second push rod arranged at one end of the first push rod, one end of the first push rod is located in the second accommodating hole, the other end of the first push rod is connected to the second push rod, one end of the second push rod is connected to the first push rod, and the other end passes through the rotating member and is provided with the fixing member. The first spring is sleeved on the second push rod, one end of the first spring presses against the first push rod, and the other end presses against the rotating member, the wire blocking rod is located in the third accommodating hole, one end of the second spring presses against the wire blocking rod, and the other end of the second spring presses against the upper panel.

2. The winding mechanism according to claim 1, wherein the tail wire is located inside the coil, characterized in that: The lower mold mechanism includes a lower fixture seat, a lower mold drive shaft movably inserted in the center of the lower fixture seat, an axial column arranged on the lower mold drive shaft, a wire groove arranged on the axial column, and a lower clamping block arranged on the fixture seat, and a mounting groove for setting the lower clamping block is provided on the end surface of the axial column facing the upper mold mechanism.

3. The winding mechanism according to claim 2, wherein the tail wire is located inside the coil, characterized in that: One end of the lower die driving shaft is movably inserted in the lower fixture seat and is provided with the axis column. The lower die driving shaft and the axis column rotate together with the lower fixture seat.

4. The winding mechanism for a coil with the tail wire located inside the coil according to claim 2, characterized in that: One end of the wire groove is connected to the installation groove, and the other end is connected to the side wall of the shaft column. The starting wire of the coil extends into the lower clamping block through the wire groove, so that it will be clamped after the mold is closed, thereby fixing the starting wire. The wire groove is located between the installation groove and the side wall of the shaft column.

5. The winding mechanism for a coil with the tail wire located inside the coil according to claim 1, characterized in that: The upper die mechanism further comprises an upper die driving shaft movably inserted on the upper fixture seat, an upper clamping block arranged on the upper die driving shaft, and a blade arranged on the upper clamping block.

6. The winding mechanism according to claim 5, wherein the tail wire is located inside the coil, characterized in that: One end of the upper die driving shaft is movably inserted in the upper fixture seat and the upper panel and is provided with the upper clamping block. The blade is provided on the side wall of the upper clamping block and moves along with the upper clamping block.

7. The winding mechanism for a coil with the tail wire located inside the coil according to claim 1, characterized in that: The upper fixture seat is further provided with a first accommodating hole, which is located at the center of the upper fixture seat and is used to arrange the upper mold driving shaft.

8. The winding mechanism for a coil with the tail wire located inside the coil according to claim 1, characterized in that: A stopper is provided on the outer side wall of the wire blocking rod, and a chamfer is provided on one end of the stopper facing the push rod.

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